| FCForterra Concrete Products - Cedar Rapids | Cedar Rapids | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Helena | Helena | MT | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - Marianna | Marianna | FL | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| FSFoster Supply INC | Charleston | WV | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FRFront Range Reddi Mix - 651 S Cr 9e | Loveland Area | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GSGamewell Septic Tank, INC. | Lenoir | NC | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GPGate Precast Company-jacksonville, Fl | Jacksonville | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GBGraffius Burial Vault Mfg Plt | Sinking Spring | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GWGulf Wilbert Vault CO INC | Theodore | AL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HWHairfield Wilbert Burial Vault Company | Morganton | NC | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services, INC | Grand Junction Area | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HPHanson Pipe & Products Southeast INC Mobile | Mobile | AL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HRHanson Roof Tile - Hobe Sound | Hobe Sound | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HRHanson Roof Tile, INC. | Sanderson | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HRHanson Roof Tile Summerfield | Summerfield | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HMHargett Materials, INC. | Milan | TN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HPHenkay Precast INC | Fort Denaud | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HSHeritage Stone | Zanesville | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HRHorgan Recycling Inc/west Point | West Point | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HOHubbell Okc Family | Oklahoma City | OK | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HPHuntsman Pigments Americas, LLC (dba Southern Color) | Cartersville | GA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HCHydro Conduit | Roanoke | TX | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| IRIndependence Recycling Jacksonville | Jacksonville | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| IIIpc INC | Des Moines | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JPJackson Precast INC | Jackson | MS | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JKJam Kat | Grandview | MO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JRJensen Rock & Sand INC. | Aberdeen | SD | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JPJersey Precast | Trenton | NJ | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JRJ & R Concrete Products INC | Perris | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JRJ & R Slaw Precast Plant | Lehighton | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| KCKirkpatrick Concrete,inc. | Bessemer | AL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LVLawrenceburg Vault Company | Lawrenceburg | TN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LRLittle Rock Wilbert Burial Vault CO. | Alexander | AR | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LWLone Wolf Enterprises-lone Wolf Enterprises | Kansas City | MO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LCLower County Recycling CO | Erial | NJ | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MCMack Concrete, LLC | Mount Vernon | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MMMandan / Monarch Products / Ust | Mandan | ND | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
 Meadow Burke, LLC. | Tampa | FL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MVMercer Vault Company | Fredericksburg | VA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MCMetromont Corporation | Charlotte | NC | Nonmetallic Mineral Product Manufacturing327390 | — | ▲ REPORTED CLOSED |
| MLMetromont LLC - Richmond Plant | Richmond | VA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MPMetromont Prestress Company | Charlotte | NC | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MHMid Hudson Concrete | Cold Spring | NY | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MIMinnick Illinois LLC | Joliet | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MCMitchell Concrete INC. | Mitchell | SD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMolin Concrete Products CO | Lino Lakes | MN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MPMonarch Precast Concrete CORP | Allentown | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MMonierlifetile | Tacoma | WA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| NFNatl Fuel Gas Supply/knox Station | Brookville | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| NVNebraska Vault INC | Columbus | NE | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
